10pcs Mini Ball Bearings 693ZZ Small Double Shielded Bearing Replacement Parts 3x8x4mm sold2025 0 + DSP audio dual

0 + DSP audio dual noise reduction technology to improve sound quality

When the LED indicator lights up

Christmas Day

multiple walkie-talkies can talk on the same channel

10pcs Mini Ball Bearings 693ZZ Small Double Shielded Bearing Replacement Parts 3x8x4mm sold2025 0 + DSP audio dual10pcs Mini Ball Bearings 693ZZ Small Double Shielded Bearing Replacement Parts 3x8x4mm Description: Miniature ball bearings are available ball bearings of quite small size. These miniature ball bearings have a 3mm inner diameter, a 8mm outer diameter, and a 4mm thickness. Ball bearings of this size are ideal for precision work and applications that require a lot of functional mechanical parts in a small space, such as 3D printer, quadcopter or model.